HESI LPN
CAT Exam Practice Test
1. An adult client with severe depression was admitted to the psychiatric unit yesterday evening. Although the client used to run a year ago, his spouse states that the client no longer runs but sits and watches television most of the day. Which is most important for the nurse to include in this client’s plan of care for today?
- A. Assist the client in identifying goals for the day
- B. Encourage the client to participate in a team sport for one hour
- C. Schedule the client for a group session that focuses on self-esteem
- D. Help the client develop a list of daily affirmations
Correct answer: A
Rationale: Assisting the client in identifying goals for the day is the most important aspect of the plan of care for a client with severe depression. Setting achievable daily goals helps engage the client in activities and promotes a sense of accomplishment, which can contribute to gradual improvement in their condition. Encouraging participation in team sports may be overwhelming for a client with severe depression as it requires a significant level of energy and motivation that the client may not possess at this time. Group sessions focusing on self-esteem and daily affirmations are beneficial interventions, but they may not have an immediate impact compared to setting achievable daily goals that can provide a sense of purpose and achievement for the client.
2. The healthcare provider prescribes a fluid challenge of 0.9% sodium chloride 1,000 ml to be infused over 4 hours. The IV administration set delivers 10gtt/ml. How many gtt/minute should the nurse regulate the infusion? (Enter a numeric value only. If rounding is required, round to the nearest whole number.)
- A. 42
- B.
- C.
- D.
Correct answer: A
Rationale: To calculate the rate: (1000 ml / 4 hours) = 250 ml/hour; (250 ml/hour) / (60 minutes/hour) = 4.17 ml/minute; (4.17 ml/minute) * (10 gtt/ml) = 41.7 gtt/minute, rounded to 42 gtt/minute. Therefore, the nurse should regulate the infusion at 42 gtt/minute to deliver the prescribed fluid challenge accurately. The other choices are incorrect as they do not reflect the correct calculation based on the given information.
3. A nurse working on an endocrine unit should see which client first?
- A. An adolescent male with diabetes who is arguing about his insulin dose.
- B. An older client with Addison’s disease whose current blood sugar level is 62mg/dl (3.44 mmol/l).
- C. An adult with a blood sugar of 384mg/dl (21.31mmol/l) and urine output of 350 ml in the last hour.
- D. A client taking corticosteroids who has become disoriented in the last two hours.
Correct answer: B
Rationale: The correct answer is B. The client with Addison’s disease and a blood sugar level of 62mg/dl (3.44 mmol/l) is experiencing hypoglycemia, which can progress to adrenal crisis. This situation requires immediate attention to prevent further complications. Choices A, C, and D, although concerning, do not pose an immediate life-threatening risk compared to the client with Addison’s disease and hypoglycemia. The adolescent arguing about his insulin dose can be addressed after stabilizing the client with Addison’s disease. The adult with high blood sugar and increased urine output may have hyperglycemia but is not in immediate danger. The client taking corticosteroids who is disoriented needs evaluation but is not in an acute life-threatening condition as the client with hypoglycemia.
4. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
5. Which client requires careful nursing assessment for signs and symptoms of hypomagnesemia?
- A. A young adult client with intractable vomiting from food poisoning
- B. A client who developed hyperparathyroidism in late adolescence
- C. A middle-aged male client in renal failure following an unsuccessful kidney transplant
- D. A female client who is overzealous with her intake of simple carbohydrates
Correct answer: A
Rationale: The correct answer is A. Vomiting can lead to significant loss of magnesium, causing hypomagnesemia. In this scenario, the young adult client with intractable vomiting from food poisoning is at higher risk of developing hypomagnesemia due to the loss of magnesium through vomiting. Choices B, C, and D are less likely to present with hypomagnesemia. Hyperparathyroidism (B) is associated with hypercalcemia, renal failure (C) can lead to hypermagnesemia, and overconsumption of simple carbohydrates (D) is not directly linked to magnesium imbalances.
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